node -v
bower -v
npm -v
npm install -g npm
npm install -g bower gulp
rm -rf bower_components
bower cache clean
bower install
rm -rf node_modules
npm cache clean
npm install
node -v
bower -v
npm -v
npm install -g npm
npm install -g bower gulp
rm -rf bower_components
bower cache clean
bower install
rm -rf node_modules
npm cache clean
npm install